Relative magnetic field density from various power transmission installation options

Public concern over EMF from power lines has resulted in significant opposition to the construction and upgrading of power transmission facilities. Often those opposed to power installations demand that the loads be served with lower voltage and/or underground lines. The problem with this idea is that in typical installations these solutions, while being less aesthetically objectionable, actually increase field levels. This applies to maximum levels and levels at the edge of the right-of-way. This paper will present a common 138 kV double circuit steel pole installation, and contrast the expected field levels against the levels from alternate installations at 138 kV and 34 kV